1. Symantec/
  2. Security Response/
  3. SymbOS.Commdropper.B


Risk Level 1: Very Low

May 18, 2006
February 13, 2007 12:55:29 PM
Trojan Horse
Systems Affected:
Symbian OS

SymbOS.Commdropper.B is a Trojan horse that affects the Symbian OS, which is used as the operating system for Nokia Series 60 cellular telephones. The Trojan drops several SymbOS.Commwarrior variants on the compromised device.

The Trojan reportedly arrives as SymbWarriorz.sis. When a user opens this file, the phone installer will display a dialog to warn users that the application may be coming from an untrusted source and may cause potential problems.

Antivirus Protection Dates

  • Initial Rapid Release version May 18, 2006
  • Latest Rapid Release version August 20, 2008 revision 017
  • Initial Daily Certified version May 18, 2006
  • Latest Daily Certified version August 20, 2008 revision 016
  • Initial Weekly Certified release date May 24, 2006
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Writeup By: Yana Liu

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